A Support Engineer Is Upgrading a PodFX 3

A support engineer is upgrading a PodFX 3.1 system to ACP 4200 4.0. The engineer is upgrading the VMware vCenter Server from Release 6.0 to Release 6.5. Which two statements about the vSphere Update Manager (VUM) data migration are true? (Choose two.)

A) The VMware-Migration-Assistant executable file is run on the Management Server Console where the current version of VUM is currently running.
B) The VMware-Migration-Assistant executable file is run on the ESXi host where the current version of VUM is currently running.
C) VUM data migration is optional.
D) VUM data migration is mandatory.